Fig. 1.

a, b: Transabdominal ultrasonographic view of a chitosan-covered gauze tamponade in utero (a) and uterus after removal of chitosan-covered gauze tamponade (b).

(a): The uterus 48 h after delivery is partially filled with clotted blood in the fundal part of the uterine cavity (*). The chitosan-covered gauze tamponade presents as a hyperechogenic structure with dorsal acoustic shadow in the lower uterine segment. (b): After removal of chitosan-covered gauze tamponade small amount of clotted blood can be seen in the uterine cavity.